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移动端web学习05:flex布局 之 侧轴对齐方式

yongxinz 2022-04-18 阅读 49

align-items(适用单行)

属性值作用
flex-start默认值,起点开始依次排序
flex-end终点开始依次排序
center

沿侧轴居中对齐

stretch

弹性盒子沿着侧轴线被拉伸至铺满容器(前提是弹性盒子不给高)

测试案例效果

测试案例代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        .box {
            margin: 100px auto;
            display: flex;
            width: 400px;
            height: 400px;
            border: 1px solid #000;
            /* 沿侧轴居中对齐 */
            align-items: center;

            /* stretch 弹性盒子沿着侧轴被拉伸至容器铺满 */
            /* align-items: stretch; */
        }
        .box div {
            width: 100px;
            height: 100px;
            background-color: pink;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <div class="box">
        <div>1</div>
        <div>2</div>
        <div>3</div>
    </div>
</body>
</html>

 


align-content (适用多行)

flex-start

默认值在侧轴头部开始

flex-end

从侧轴底部开始

center

侧轴居中

space-around

侧轴方向平分剩余空间

space-between

子项先到侧轴两头,再平分剩余空间

stretch

子项元素平分弹性容器侧轴的高度,前提弹性盒子不给高

案例测试效果

 

 

 

 

 测试案例代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        .box {
            margin: 100px auto;
            display: flex;
            width: 502px;
            height: 500px;
            border: 1px solid #000;
            flex-wrap: wrap;
            /* flex-start默认值在侧轴头部开始 flex-end 从侧轴底部开始 */
            align-content: flex-start;
            /* align-content: flex-end; */


            /* 侧轴居中 */
            /* align-content: center; */

            /* 侧轴方向平分剩余空间 */
            /* align-content: space-around; */

            /* 子项先到侧轴两头,再平分剩余空间 */
            /* align-content: space-between; */

            /* 子项元素平分弹性容器侧轴的高度 */
            /* align-content: stretch; */

        }
        .box div {
            width: 100px;
            height: 100px;
            background-color: pink;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <div class="box">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
        <div>6</div>
        <div>7</div>
        <div>8</div>
        <div>9</div>
        <div>10</div>
    </div>
</body>
</html>

 

 

 

 

 

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